Wrench



(No Model.)

M. W. ANSTERBURG.

WRENCH. No. 562,112. Patented Jun e 16, 1896.

Witnassas:

UNITE STATES PATENT OFFI E MICHAEL \V. ANSTERBURG, OF HOMER, MICHIGAN.

WRENCH.

SPECIFICATION forming part of Letters Patent No. 562,112, dated June 16,18 96.

' Application filed August 24,1896. Serial No. 560,243. on man To aZZwhom it may concern:

Be it known that I, I\.'IICHAEL W. ANSTER- BURG, a citizen of the UnitedStates, residing at the village of Homer, in the county of Calhoun andState of Michigan, have invented certain new and useful Improvements in\Vrenches, of which the following is a specification.

My invention relates to improvements in wrenches, and is speciallydesigned as an improvement in a wrench which is adapted for use as apipe-wrench or as a nut-wrench, as the users may desire.

The objects of my invention are, first, to provide a wrench .of theclass described which is cheap of construction, it being pos sible tocast most of the parts so that they will slide together without anymachine fitting; second, to provide a wrench in which the movable jaw isfirmly adjustable upon the handle of the wrench; third, to provideimproved means of quickly adjusting the movable jaw of the wrench. Iaccomplish these objects of my invention by the devices shown in theaccompanying drawings, in which- Figure 1 is a perspective view of awrench embodying all features of my invention. Fig. 2 is a detailperspective view of the movable jaw removed from the wrench. Fig. 3 is adetail view of the locking-block of the wrench. Fig. 4 is an enlargeddetailed side View of the wrench, the movable jaw and locking-blockbeing shown in section; and Fig. 5 is a sectional view through themovable jaw and locking-block on line 5 5 of Fig. 4:, looking up.

Similar letters of reference refer to similar parts throughout theseveral views.

In the drawings, A represents the handle of the wrench, which is turnedoff to one side and forms the toothed jaw A, which is rigid with thehandle. A suitable removable toothed jaw-piece of steel is inserted injaw A and forms the teeth thereon. On the front of the handle A aresuitable serrations or teeth E. Adjustable upon the handle is themovable jaw B, which is secured thereto by suitable collars 13 B.Contained in a recess in the movable jaw B is the lockingblock 0, whichhas serrations or teeth E spring F is inserted which holds thelockingblock 0 normally against the handle A, so that its teeth E engagewith the teeth E on the handle A. To hold the locking-block securely inposition, when force is applied to the wrench, little recesses O areformed in the rear portion of the front collar B of a size suflicient tobe engaged by the lockingblock 0, the said recesses being at such adistance that when the block engages them it will be retained so thatits teeth will be in mesh with the teeth of the handle without theassistance of the spring F to retain them there.

When using the wrench, the operative takes hold of the locking-block 0,draws it.

outwardly away from the handle A, which compresses the spring F,disengages the serrations on the block, and permits the jaw to be movedalong by passing the collars along over the handle A. For shutting thewrench upon the pipe or nut all that is necessary to do is to open thejaw wider than the nut or pipe, then push it toward it, the springallowing the serrated block 0 to be depressed, and the teeth on thehandle pointing toward the jaw allow it to pass over them freely butretain it from returning.

When the wrench is applied to a pipe or bolt, the end of the block 0will crowd into the recesses O and lock it over in that position so thatit will be held stationary while in use. is quickly and easily detachedby taking hold of the locking-block G, (suitable depressions I I beingformed therein to make this convenient,) withdrawing the block, andtaking up the movable jaw to any point desired.

I desire to say that my improved wrench After the wrench has been used,it

can be somewhat varied in its details without departing from myinvention. The wrench will be quite effective without the recess 0 inthe forward collar, but is much more effective with said recesses, andthe lockingblock might be retained by other guiding means than thosehere shown in position in the jaw.v

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-- 1. I11 a wrench the combination of thehandle A with forwardly-pointing teeth E on its front side; a suitablestationary jaw A; the movable jaw B with collars B B embracing thehandle A and the recess 0 on the rear side of the front collar; thelocking-block 0, adapted to enter the recess C in the movable jaw 13,with teeth E, adapted to engage the teeth E on the handle A, and aspring F inserted in suitable cavities G between the locking-block C andthe movable jaw 13, all

coacting together substantially as described for the purpose specified.

2. In a wrench the combination of the han- 2 dle A with teeth E on itsfront side and a stationary jaw at its outer end; the movable jaw 13with collars B 3 to embrace the handle A, the rear of the front collar Bcontaining a recess O; the locking-block O placed between the main partof the movable jaw B and the handle A with teeth thereon to engage theteeth on the said handle, the said block being also adapted to engage inthe recesses C to lock the jaw ad justably in place 3 as specified.

In witness whereof Ihavc hereunto set my hand and seal in the presenceof two witnesses.

MICHAEL W. ANC'JI IRBURG. l.. s]

\Vitnesses:

CHARLES D. DUI-ill, \V. A. LANE.

